Immersivetranslate is a free browser extension that translates web pages, documents and video subtitles in dozens of languages. It translates web pages on the fly, preserves formatting in PDF documents, and translates input boxes with a keyboard shortcut. It works on Chrome, Edge, Firefox and Safari browsers, so you can use it on a phone or PC.
Another powerful option is SYSTRAN, a commercial translation service that supports more than 55 languages. It offers different translation services, including text, document and web page translation through a browser extension, programming interface and CAT tool integration. SYSTRAN has strong security controls and customization options, so it's geared for businesses and organizations that need to communicate multilingually efficiently and securely.
If you want more-advanced AI-powered translations, DeepL offers translations that are more accurate and natural-sounding in many languages. It can translate text, documents and websites, so it's good for personal and professional use. DeepL offers a free plan with limitations and a paid subscription for more features, so you can break down language barriers and reach a wider audience.